AT274970B - Electrical limiting circuit - Google Patents

Electrical limiting circuit

Info

Publication number
AT274970B
AT274970B AT198367A AT198367A AT274970B AT 274970 B AT274970 B AT 274970B AT 198367 A AT198367 A AT 198367A AT 198367 A AT198367 A AT 198367A AT 274970 B AT274970 B AT 274970B
Authority
AT
Austria
Prior art keywords
limiting circuit
electrical limiting
electrical
circuit
limiting
Prior art date
Application number
AT198367A
Other languages
German (de)
Original Assignee
Biviator Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH398766A external-priority patent/CH449104A/en
Priority claimed from CH1032466A external-priority patent/CH465044A/en
Application filed by Biviator Sa filed Critical Biviator Sa
Application granted granted Critical
Publication of AT274970B publication Critical patent/AT274970B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/40—Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load
AT198367A 1966-03-18 1967-03-01 Electrical limiting circuit AT274970B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH398766A CH449104A (en) 1966-03-18 1966-03-18 Electric motor current limiting circuit arrangement, in particular for limiting the torque of tools driven by an electric motor
CH1032466A CH465044A (en) 1966-07-15 1966-07-15 Electric motor current limiting circuit arrangement, in particular for limiting the torque of tools driven by an electric motor

Publications (1)

Publication Number Publication Date
AT274970B true AT274970B (en) 1969-10-10

Family

ID=25694346

Family Applications (1)

Application Number Title Priority Date Filing Date
AT198367A AT274970B (en) 1966-03-18 1967-03-01 Electrical limiting circuit

Country Status (5)

Country Link
US (1) US3477007A (en)
AT (1) AT274970B (en)
DE (1) DE1588032A1 (en)
FR (1) FR1516525A (en)
GB (1) GB1178132A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1006606A (en) * 1972-05-22 1977-03-08 Katsuyuki Totsu Motor-driven screw driver with automatic stopping means
US4015110A (en) * 1975-09-15 1977-03-29 Brandt-Pra, Inc. Electronic control means for paper counting and handling machines
US4210852A (en) * 1975-11-14 1980-07-01 Atlas Copco Aktiebolag Electric nutrunner
DE2724293C2 (en) * 1977-05-28 1984-09-06 C. & E. Fein Gmbh & Co, 7000 Stuttgart Electronic circuit arrangement for torque limitation
US4182979A (en) * 1978-02-03 1980-01-08 Giddings & Lewis, Inc. D-C. electric torquing system
DE2847765C2 (en) * 1978-11-03 1984-02-16 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach Circuit arrangement for protecting a drive motor from overload, in particular for a dental device
JPS57106388A (en) * 1980-12-22 1982-07-02 Janome Sewing Mach Co Ltd Controller for safety of commutator motor
JPS57144638A (en) * 1981-02-26 1982-09-07 Koichiro Kitamura Protective device for automatic tool changing device
DE3222066A1 (en) * 1982-06-11 1983-12-15 Black & Decker, Inc. (eine Gesellschaft n.d.Ges.d. Staates Delaware), 19711 Newark, Del. Electric hand tool with a circuit for speed adjustment and torque limiting
DE3236033A1 (en) * 1982-09-29 1984-03-29 Robert Bosch Gmbh, 7000 Stuttgart SCREW DEVICE
IT1212535B (en) * 1982-10-26 1989-11-30 Star Utensili Elett ELECTRONIC CLUTCH WITH MULTIPLE LEVEL OF INTERVENTION FOR ELECTRIC TOOLS WITH SPEED SELECTABLE.
DE3446240A1 (en) * 1984-12-19 1986-06-26 Preh, Industrieausrüstungen GmbH, 8740 Bad Neustadt DRIVE DEVICE
DE3500714C1 (en) * 1985-01-11 1988-12-22 Kipfelsberger, Albert, 8070 Ingolstadt Power wrench with torque limitation
DE3519840A1 (en) * 1985-06-03 1986-12-04 Heidelberger Druckmaschinen Ag, 6900 Heidelberg METHOD FOR LIMITING THE SPEED OF A DRIVE MOTOR OF A ROTATIONAL OFFSET PRINTING MACHINE
DE3811188A1 (en) * 1987-10-24 1989-05-03 Volz Abc Elektrogeraete DEVICE FOR TORQUE LIMITATION IN A HAIR TREATMENT DEVICE
DE4210273C2 (en) * 1992-03-28 1994-04-21 Egt Ind Elektronik Gmbh Power wrench with torque limitation
US5410229A (en) * 1992-07-31 1995-04-25 Black & Decker Inc. Motor speed control circuit with electronic clutch
WO2007056172A1 (en) 2005-11-04 2007-05-18 Robert Bosch Gmbh Method and apparatus for an articulating drill
US10357871B2 (en) 2015-04-28 2019-07-23 Milwaukee Electric Tool Corporation Precision torque screwdriver
EP3750671B1 (en) 2015-04-28 2023-02-01 Milwaukee Electric Tool Corporation Precision torque screwdriver

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431316A (en) * 1945-10-31 1947-11-25 Frank E Dudley Electronic current limiter system for machine tool motors
US2810778A (en) * 1954-02-12 1957-10-22 Nestor Engineering Company Motor control device
US2987632A (en) * 1958-07-18 1961-06-06 Gen Electric Monostable multivibrator with emitterfollower feedback transistor and isolated charging capacitor
DE1175033B (en) * 1959-06-26 1964-07-30 Bosch Gmbh Robert Fuel injection system for internal combustion engines
US3017524A (en) * 1959-12-31 1962-01-16 Avien Inc Stabilized transistor multivibrator
US3229182A (en) * 1962-03-07 1966-01-11 Gen Electric Armature voltage sensing and indicating circuit

Also Published As

Publication number Publication date
GB1178132A (en) 1970-01-21
DE1588032A1 (en) 1970-06-25
US3477007A (en) 1969-11-04
FR1516525A (en) 1968-03-08

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